Hirsch, Foster, "A Little Sondheim Music (III)," in his Harold Prince and the American Musical Theatre, Cambridge University Press, 1989, p. 120.

Orchard, Lee F., "Stephen Sondheim and the Disintegration of the American Dream: A Study of the Work of Stephen Sondheim from Company to Sunday in the Park with George," Ph.D. Dissertation, University of Oregon, 1988, pp. 398—99, 468.